Ключевые слова: bar, control, counter, device, equipment, filtration, filtration system, flow, fluorescent, fuel, gas, gas flow, gauge, high voltage, indicate, indicator, industrial, industry, instrument, labels, lamp, lamps, machine, manometer, measure, measurement, measuring, mechanical, monitor, oxygen, pipe, pressure, pressure gauge, pressure indicator, psi, purge, purification, rectification, refinement, refinement machine, scale, scavenging, stethoscope, system, technical, technology, tool, voltage, water, water filtration,